.head {
    border-bottom: 1px solid #aec7ec;
}

.head-nav li a {
    color: #fff;
}

.head-btn a:first-child {
    color: #fff;
}

.head-nav .active::after {
    content: '';
    display: block;
    width: 100%;
    height: 0px;
    color: #ffffff;
    border-bottom: 2px solid #ffffff;
    position: absolute;
    /* top: 42px; */
}


/* 粒子图canvas背景div */

.particle {
    padding-top: 75px;
    height: 360px;
    box-sizing: border-box;
    background-color: rgba(0, 0, 0, 0.88);
    top: 0;
    position: relative;
    /* margin-bottom: 120px; */
}

.szyh {
    background-color: #fff;
    margin-top: -160px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.szyh .box {
    padding: 50px;
    height: 290px;
    box-sizing: border-box;
}

.szyh>img {
    width: 580px;
    height: 290px;
}

.szyh h1 {
    font-size: 26px;
    color: black;
    font-weight: normal;
    margin: 20px 0;
}

.szyh span {
    /* 将盒子转为弹性伸缩盒子 */
    display: -webkit-box;
    /* 设置文本为垂直排列 */
    -webkit-box-orient: vertical;
    /* 显示的行数 */
    -webkit-line-clamp: 3;
    /* 溢出隐藏 */
    overflow: hidden;
}


/* 文字描写 */

.main {
    background-color: #f8f9fb;
    padding: 0 50px;
    box-sizing: border-box;
}

.text {
    padding-top: 160px;
}

.text img {
    width: 50px;
    height: 50px;
    display: block;
    margin-bottom: 20px;
}

.earnings span,
.text span {
    color: #181818;
    line-height: 22px;
    font-size: 14px;
    display: block;
}

.text p {
    color: #666;
    font-size: 12px;
    margin-top: 20px;
    margin-bottom: 30px;
}

.text p::before {
    content: '';
    display: block;
    width: 20px;
    border-bottom: 4px solid #1271ef;
    margin: 10px 0 -10px -24px;
}


/* 收益 */

.earnings h4 {
    font-size: 24px;
    color: #181818;
    font-weight: normal;
    margin-bottom: 30px;
}

.earnings img {
    margin: 60px 0;
    width: 1100px;
}